Home / 19,972.16-29,931.24-11,647.52

Finding the Fourth Proportional to 19,972.16, 29,931.24 and 11,647.52

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Solution

The fourth proportional to 19,972.16, 29,931.24 and 11,647.52 is: 17,455.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,972.16 : 29,931.24 = 11,647.52 : x
  2. Step 2: Convert to fraction form
    19,972.16/29,931.24 = 11,647.52/x
  3. Step 3: Cross multiply
    19,972.16x = 29,931.24 × 11,647.52
  4. Step 4: Simplify right side
    19,972.16x = 348,624,716.52
  5. Step 5: Solve for x
    x = 348,624,716.52/19,972.16
  6. Step 6: Final answer
    x = 17,455.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.